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Credit: Getty Images

CHICAGO, IL - APRIL 23: Rostislav Klesla #16 of the Phoenix Coyotes is helped off of the ice after suffering a head injury in the first period against the Chicago Blackhawks in Game Six of the Western Conference Quarterfinals during the 2012 NHL Stanley Cup Playoffs at the United Center on April 23, 2012 in Chicago, Illinois. (Photo by Jonathan Daniel/Getty Images)